// Copyright 2020 The TensorFlow Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import SwiftUI

/// Content view to show dataset's content and highlight answer of the question if exists.
struct ContentView: View {
  var highlightRange: Range<String.Index>?
  var content: String

  var body: some View {
    guard let range = highlightRange else {
      return Text(content)
    }

    // If there's range to highlight, change the color of that range.
    return Text(content[..<range.lowerBound])
      + Text(content[range]).foregroundColor(.orange)
      + Text(content[range.upperBound...])
  }
}
